13:47:58 Write to Excel2007 format<br />13:47:58 File written to 33chartcreate-bar-stacked.xlsx<br />13:47:58 Peak memory usage: 6 MB<br />13:47:58 Done writing file<br />File has been created in /home/akacsystem/facturacion.akacsystem.com/vendor/phpoffice/phpexcel/Examples<br />